CN102055207B - Intelligent power control unit for low voltage ride through and application thereof - Google Patents
Intelligent power control unit for low voltage ride through and application thereof Download PDFInfo
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- CN102055207B CN102055207B CN2010105908804A CN201010590880A CN102055207B CN 102055207 B CN102055207 B CN 102055207B CN 2010105908804 A CN2010105908804 A CN 2010105908804A CN 201010590880 A CN201010590880 A CN 201010590880A CN 102055207 B CN102055207 B CN 102055207B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66234—Bipolar junction transistors [BJT]
- H01L29/66325—Bipolar junction transistors [BJT] controlled by field-effect, e.g. insulated gate bipolar transistors [IGBT]
- H01L29/66333—Vertical insulated gate bipolar transistors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Control Of Eletrric Generators (AREA)
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Abstract
The invention relates to an intelligent power control unit (IPCU) for low voltage ride through, which comprises a port A, a port B, a port C, a built-in auxiliary frequency converter for stabilizing stator voltage at the moment of ride through and for providing reactive power, and a controllable active load for absorbing active power; a high speed switch is arranged between the port A and the port B; the built-in auxiliary frequency converter is arranged between the port A and the port C; and the built-in auxiliary frequency converter and the controllable active load are sequentially connected between the port A and the port C in series or connected with the controllable active load from the port A through a three-phase bridge-type rectifier, so that the branch circuit of the built-in auxiliary frequency converter is connected with that of the controllable active load in parallel. When the IPCU is used, the port A is connected with the stator winding of a wind generating set, the port B is connected with the power network, and the port C is connected with the DC bus of an external auxiliary frequency converter.
Description
Technical field
The present invention relates to a kind of low-voltage and pass through intelligent power control unit and application thereof, especially do not pass through the low-voltage of all kinds of wind-driven generators design of function and pass through the intelligent power control unit to not having low-voltage.Promptly be applicable to and transform existing asynchronous wind driven generator, also contain the double feed wind power generator of frequency converter applicable to improvement.
Background technology
Along with developing rapidly of wind power generation, the wind-powered electricity generation installed capacity constantly increases, and ratio shared in generate output also improves constantly.When electric power system apoplexy Denso machine capacity large percentage, after electric power system fault caused electric voltage dropping, the wind energy turbine set excision can have a strong impact on the stability of system's operation.There are some researches show, pass through when wind-driven generator has low-voltage that (Low Voltage Ride Through LVRT) during ability, can improve the stability of whole electric power system.Therefore the country of wind-powered electricity generation installation large percentage in the world in the wind-electricity integration regulation like promulgations such as Denmark, Germany, the U.S., all requires the wind-powered electricity generation unit all to possess the LVRT ability, guarantees that the electric power system after wind group of motors that breaks down can uninterruptedly be incorporated into the power networks.
Although various countries have nothing in common with each other to the requirement of low voltage ride-through capability of wind turbine generator system; But the content that all comprises following several aspects; Wind energy turbine set access power system technology regulation (Q/GDW392-2009) with China's promulgation is an example, and the technical stipulation that inserts electric power system in wind energy turbine set is explicitly calling for:
A) wind energy turbine set must have the low voltage ride-through capability that when voltage falls to 20% rated voltage, can keep the 625ms that is incorporated into the power networks;
B) wind energy turbine set voltage can return to 90% o'clock of rated voltage in the 3s falling the back, and wind energy turbine set must keep being incorporated into the power networks;
C) wind energy turbine set is boosted and is become high side voltage and be not less than 90% o'clock of rated voltage, and wind energy turbine set must uninterruptedly be incorporated into the power networks.
The main type of wind-powered electricity generation unit of China has following four kinds at present: constant-speed and constant-frequency asynchronous generating unit, limited speed change asynchronous generating unit, variable speed constant frequency double-fed generator group and variable speed constant frequency directly drive generating set.Wherein constant-speed and constant-frequency asynchronous generating unit and limited speed change asynchronous generating unit itself do not possess the LVRT ability; The variable speed constant frequency double-fed generator group can make it possess the LVRT ability through adding Crowbar in rotor-side at present; Not only need do bigger change to master controller and equipment such as becoming the oar controller; And the control more complicated, also need be in crossing process from the electrical network absorbing reactive power; Variable speed constant frequency directly drives generating set owing to adopted the total power frequency converter in the system, realizes that LVRT is relatively simple.
Most wind-powered electricity generation units of installing in China's wind energy turbine set at present all are constant-speed and constant-frequency asynchronous generating unit or variable speed constant frequency double-fed generator group, and these unit great majority all do not have low voltage ride-through capability.Therefore these units are transformed, making it possess low voltage ride-through capability has crucial meaning for the stable operation of electrical network.
Summary of the invention
The objective of the invention is to: ubiquitous low voltage ride-through capability is poor in being incorporated into the power networks to present wind-driven generator; Especially the practical problem of constant-speed and constant-frequency asynchronous generating unit or variable speed constant frequency double-fed generator group low voltage ride-through capability difference provides a kind of low-voltage to pass through intelligent power control unit and application thereof.
The objective of the invention is to realize like this: a kind of low-voltage is passed through intelligent power control unit (Intelligent Power Control Unit for Low Voltage Ride Through is called for short IPCU, down together), it is characterized in that:
A) IPCU is provided with A port, B port and C port, also is provided with in the control unit to pass through moment built-in auxiliary converter of stablizing stator voltage and reactive power being provided and the controlled active load that absorbs active power;
B) be provided with speed-sensitive switch between said A port and the said B port;
C) be provided with built-in auxiliary converter between said A port and the said C port, wherein, the ac bus of built-in auxiliary converter is connected with said A port, and DC side is connected with said C port;
D) controlled active load is connected with the dc output end of built-in auxiliary converter, and built-in auxiliary converter and controlled active load are serially connected between A port and the C port successively; Or be connected with controlled active load through three-phase bridge rectification from the A port, make built-in auxiliary converter branch road parallelly connected with controlled active load branch road.
In the present invention: described controlled active load is made up of brake switch and brake resistance, and described brake switch is insulation gate pole bipolar transistor IGBT.
In the present invention: said three-phase bridge rectifier circuit AC side is provided with the LC filter circuit.
In the present invention: described speed-sensitive switch is gate level turn-off thyristor GTO, perhaps is furnished with the thyristor of breaking circuit.
The application of a kind of above-mentioned IP CU is characterized in that: described A port is connected with the wind generator set stator winding, and described B port is connected with electrical network, and described C port is connected with the dc bus of external auxiliary converter.
In the application of IPCU; Described external auxiliary converter is for connecting the auxiliary converter of electrical network; Or double-fed wind power generator rotor side frequency converter, maybe will connect the combination after the dc bus butt joint of auxiliary converter and double-fed wind power generator rotor side frequency converter of electrical network.
In the application of IPCU: be provided with electric capacity between said C port and the external auxiliary converter dc bus.
In the application of IPCU: the switch that is incorporated into the power networks is located at the A port side, and the wind generator set stator winding is connected with the A port through the switch that is incorporated into the power networks.
The invention has the advantages that: IPCU is applicable to all kinds wind-driven generator.Adopt after the IPCU, wind generator system will have the following advantages:
Wind generator system will have perfect low voltage ride-through capability, comprise no-voltage and fall with electrical network tripping operation etc. and all can reliably pass through in interior fault;
Operation to wind-driven generator does not have influence, and master controller need not done any change with change oar controller, uses very simple;
After fault finished, it is fast that blower fan recovers the speed of normal operation, and after the fault, the operating state before blower fan can return within 2s satisfies the requirement that electrical network passes through low-voltage;
Machine driven system to blower fan does not have influence, avoids influences such as distortion that electric network fault produces axle system, vibration greatly, the useful life of improving blower fan;
Can meritorious and idle support (optional function) be provided to electrical network between age at failure;
Cost is low, reliability is high.The element price comparison that IPCU selects for use is low, therefore adopts the cost of IPCU reformation of blower also very low, and components and parts such as while bidirectional thyristor also can satisfy the requirement of the blower fan high reliability that is incorporated into the power networks.
After having adopted IPCU; Owing between age at failure, electrical network and blower fan are kept apart, the electromagnetism and the electromechanical transient process of a series of complicacies of avoiding producing on the rotor of motor because of the line voltage sudden change are under the prerequisite that assurance is reliably passed through; Not only avoided the impact of drive system; And need not revise master controller and become the oar director demon, simplified the design of whole blower fan system greatly, improved the reliability of low-voltage crossing process.
Description of drawings
Fig. 1 is a kind of IPCU example structure sketch map that the present invention is relating to;
Fig. 2 is the another kind of IPCU example structure sketch map that the present invention is relating to;
Fig. 3 is a kind of application mode of IPCU;
Fig. 4 is IPCU and auxiliary net side frequency converter matched application mode;
Fig. 5 is IPCU and dual feedback wind power generation system rotor side frequency converter matched application mode;
Fig. 6 is the double-fed wind power generator frequency converter matched application mode of IPCU, net side frequency converter and rotor-side frequency converter.
Embodiment
Accompanying drawing discloses the concrete structure and its several kinds application of the embodiment of the invention without limitation, below in conjunction with accompanying drawing the present invention is done further description.
Visible by Fig. 1, IPCU is provided with A port, B port and C port, also is provided with in the control unit to pass through moment and stablize stator voltage and the built-in auxiliary converter AI of reactive power and the controlled active load of absorption active power are provided; Be provided with speed-sensitive switch GK between said A port and the said B port; Be provided with built-in auxiliary converter AI between said A port and the said C port, wherein, the ac bus of built-in auxiliary converter AI is connected with said A port, and DC side is connected with said C port;
In the present embodiment; Controlled active load is connected with the dc output end of built-in auxiliary converter AI; Built-in auxiliary converter AI and controlled active load are serially connected between A port and the C port successively, and described controlled active load is made up of brake switch ZK and brake resistance ZR.
During practical implementation, described speed-sensitive switch GK is gate level turn-off thyristor GTO or the thyristor of being furnished with breaking circuit, and brake switch ZK selects IGBT.
Visible by Fig. 2; The another kind of execution mode of IPCU is with unique difference that the disclosed execution mode of Fig. 1 exists: be connected with controlled active load through three-phase bridge rectification RF from the A port, make and stablize stator voltage and provide the built-in auxiliary converter AI branch road of reactive power parallelly connected with controlled active load branch road.
During practical implementation, because rectifier bridge can produce harmonic current in the process of work, these harmonic waves can influence the quality of voltage of built-in auxiliary converter output, therefore, can be provided with LC filter circuit FL in three-phase bridge rectifier circuit RF AC side.
In Fig. 1 and the described IPCU of Fig. 2, the selection of speed-sensitive switch GK (gate level turn-off thyristor GTO or be furnished with the thyristor of breaking circuit) should be satisfied the turn-off time within 1ms, and with the output current coupling of wind-driven generator; The selection of brake switch ZK should be satisfied the maximum voltage of braking circuit permission and the requirement of electric current; The selection of brake resistance ZR should be satisfied the output energy that releases energy greater than wind-driven generator, and the power grade of built-in auxiliary converter AI should mate with wind-driven generator.
Fig. 3 is a kind of application of IPCU in wind-driven generator, and described IPCU promptly can select embodiment shown in Figure 1, also can adopt the embodiment shown in the embodiment 2, for the ease of statement, only is that example is explained with embodiment illustrated in fig. 1.
In Fig. 3, the A port of IPCU is connected with the wind generator set stator winding, and the B port is connected with electrical network.
In the use, when the electrical network operate as normal, gate level turn-off thyristor GTO among the IPCU or the thyristor conducting of being furnished with breaking circuit; Brake switch IGBT ends; Because the odd harmonic in the electrical network is fewer, filter is inoperative basically, and the whole equivalence of IPCU is closed alternating-current switch.Built-in auxiliary converter is operated in ready mode, promptly controls its DC bus-bar voltage and keeps reactive power constant, output to equal 0.This moment, built-in auxiliary converter did not consume meritorious and reactive power basically, to the not influence of operate as normal of wind-driven generator.
The degree of depth of electric network electric voltage drop has very big influence to the operation of wind-driven generator, and when falling the degree of depth when little, electric network electric voltage drop is smaller to the influence of the normal operation of wind-driven generator, leans on this moment the ability of blower fan self just can pass through over.
And the degree of depth is when very big, the permissible range that can fall according to the characteristics setting voltage of blower fan, and this permissible range is generally 90% of electrical network rated voltage.When surpassing permissible range, IPCU forces shutoff door pole cut-off crystal brake tube GTO or is furnished with the thyristor of breaking circuit, and turn off process can be accomplished about 1ms.After gate level turn-off thyristor GTO or thyristor end; Brake switch IGBT conducting; The active power release channel of wind-driven generator is provided by brake resistance; Simultaneously built-in subordinate inverter has been stablized motor stator voltage and is provided the wind-driven generator operation required reactive power, and what make wind-driven generator can stable operation.
If line voltage can pass through in low-voltage and want to recover in the seeking time normal, gate level turn-off thyristor GTO or thyristor are closed again, and brake switch IGBT ends simultaneously, makes wind-driven generator be connected to the grid, and recovers operate as normal; If line voltage can not recover normal in low-voltage is passed through time of requirement, IPCU also will quit work, and make wind-driven generator off-grid and shutting down.
Application mode shown in Figure 4 and the difference of Fig. 3 are; The C port of IPCU is connected with the dc bus of external auxiliary converter, and in the present embodiment, external auxiliary converter is net side auxiliary converter; Adopt the advantage of this application mode to be: in the crossing process; Net side auxiliary converter can provide the active power release channel of wind-driven generator jointly with brake resistance, and simultaneously, net side auxiliary converter also can provide meritorious and reactive power support for electrical network during fault is passed through.
Application mode shown in Figure 5 and the difference of Fig. 4 are; External auxiliary converter is a wind power generator rotor side double-fed frequency converter; Adopt the advantage of this application mode to be: because double-fed wind power generator itself just is furnished with frequency converter; So just can make full use of existing parts, reduce improvement cost.In crossing process, the control strategy before double fed electric machine rotor side frequency converter still keeps, built-in auxiliary converter keeps stator voltage to stablize and provides the double feedback electric engine operation required reactive power.
Application mode shown in Figure 6 is actually the combination of Fig. 4 and two kinds of application modes of Fig. 5, and its binding site is: external auxiliary converter is being connected with the C port of IPCU after being the dc bus butt joint with net side auxiliary converter and rotor-side double-fed frequency converter.In this execution mode; Control strategy before double fed electric machine rotor side frequency converter still keeps; Brake resistance and net side auxiliary converter provide the active power release channel of wind-driven generator jointly, and built-in auxiliary converter keeps stator voltage to stablize and provides the double feedback electric engine operation required reactive power.Simultaneously, net side auxiliary converter also can provide meritorious and reactive power support for electrical network during fault is passed through.
Claims (10)
1. a low-voltage is passed through the intelligent power control unit, it is characterized in that:
A) low-voltage is passed through the intelligent power control unit and is provided with A port, B port and C port, also is provided with in the control unit to pass through moment built-in auxiliary converter of stablizing stator voltage and reactive power being provided and the controlled active load that absorbs active power;
B) be provided with speed-sensitive switch between said A port and the said B port;
C) be provided with built-in auxiliary converter between said A port and the said C port, wherein, the ac bus of built-in auxiliary converter is connected with said A port, and DC side is connected with said C port;
D) controlled active load is connected with the dc output end of built-in auxiliary converter, and built-in auxiliary converter and controlled active load are serially connected between A port and the C port successively; Or be connected with controlled active load through three-phase bridge rectification from the A port, make built-in auxiliary converter branch road parallelly connected with controlled active load branch road.
2. low-voltage according to claim 1 is passed through the intelligent power control unit, it is characterized in that: described controlled active load is made up of brake switch and brake resistance.
3. low-voltage according to claim 2 is passed through the intelligent power control unit, it is characterized in that: described brake switch is insulation gate pole bipolar transistor IGBT.
4. low-voltage according to claim 1 is passed through the intelligent power control unit, it is characterized in that: said three-phase bridge rectifier circuit AC side is provided with LC bypass filter circuit.
5. pass through the intelligent power control unit according to the described low-voltage of one of claim 1 ~ 4, it is characterized in that: described speed-sensitive switch is gate level turn-off thyristor GTO, perhaps is furnished with the thyristor of reverse breaking circuit.
6. application of passing through the intelligent power control unit like the described low-voltage of one of claim 1 ~ 4, it is characterized in that: described A port is connected with the wind generator set stator winding, and described B port is connected with electrical network.
7. low-voltage according to claim 6 is passed through the application of intelligent power control unit, it is characterized in that: described C port is connected with the dc bus of external auxiliary converter.
8. low-voltage according to claim 7 is passed through the application of intelligent power control unit, its
Be characterised in that: described external auxiliary converter is for connecting the auxiliary converter of electrical network; Or double-fed wind power generator rotor side double-fed frequency converter, maybe will connect the combination after the dc bus butt joint of auxiliary converter and double-fed wind power generator rotor side double-fed frequency converter of electrical network.
9. low-voltage according to claim 7 is passed through the application of intelligent power control unit, it is characterized in that: be provided with electric capacity between the external auxiliary converter dc bus of said C port.
10. the application of passing through the intelligent power control unit according to claim 7 or 8 described low-voltages, it is characterized in that: the wind generator set stator winding is connected with the A port through the switch that is incorporated into the power networks.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105908804A CN102055207B (en) | 2010-12-16 | 2010-12-16 | Intelligent power control unit for low voltage ride through and application thereof |
| US13/994,657 US20130265806A1 (en) | 2010-12-16 | 2011-08-19 | Intelligent power control unit for low voltage ride through and its application |
| KR1020137018621A KR20130126961A (en) | 2010-12-16 | 2011-08-19 | Intelligent power control unit for low voltage ride through and its application |
| EP11849645.4A EP2637278A1 (en) | 2010-12-16 | 2011-08-19 | Intelligent power control unit for low voltage ride through and its application |
| JP2013543502A JP5895001B2 (en) | 2010-12-16 | 2011-08-19 | Low voltage crossing intelligent power control unit and its use |
| PCT/CN2011/076944 WO2012079363A1 (en) | 2010-12-16 | 2011-08-19 | Intelligent power control unit for low voltage ride through and its application |
| CA2821020A CA2821020A1 (en) | 2010-12-16 | 2011-08-19 | Intelligent power control unit for low voltage ride through and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105908804A CN102055207B (en) | 2010-12-16 | 2010-12-16 | Intelligent power control unit for low voltage ride through and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102055207A CN102055207A (en) | 2011-05-11 |
| CN102055207B true CN102055207B (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105908804A Expired - Fee Related CN102055207B (en) | 2010-12-16 | 2010-12-16 | Intelligent power control unit for low voltage ride through and application thereof |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20130265806A1 (en) |
| EP (1) | EP2637278A1 (en) |
| JP (1) | JP5895001B2 (en) |
| KR (1) | KR20130126961A (en) |
| CN (1) | CN102055207B (en) |
| CA (1) | CA2821020A1 (en) |
| WO (1) | WO2012079363A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055207B (en) * | 2010-12-16 | 2012-08-01 | 南京飓能电控自动化设备制造有限公司 | Intelligent power control unit for low voltage ride through and application thereof |
| CN102957163A (en) * | 2011-08-23 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Direct-current chopper and direct-current chopping method for doubly-fed induction generator system |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014502136A (en) | 2014-01-23 |
| EP2637278A1 (en) | 2013-09-11 |
| KR20130126961A (en) | 2013-11-21 |
| JP5895001B2 (en) | 2016-03-30 |
| US20130265806A1 (en) | 2013-10-10 |
| WO2012079363A1 (en) | 2012-06-21 |
| CA2821020A1 (en) | 2012-06-21 |
| CN102055207A (en) | 2011-05-11 |
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Effective date of registration: 20160302 Address after: 211113 Tao Dong Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: Nanjing High Accurate Drive Electromechanical Automation Equipment Co., Ltd. Address before: 211113 Tao Dong Road, Jiangning economic and Technological Development Zone, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Juneng Electric Control Automation Equipment Manufacturing Co., Ltd. |
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